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Where to Connect OEM front brake switch on '81 seca 750.

Discussion in 'XJ Technical Chat' started by Rodney Brown, Jul 4, 2019.

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  1. Rodney Brown

    Rodney Brown Member

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    Hey guys! Longtime member. First-time posting. Just purchased an oem front brake switch for my '81 XJ seca 750. I don't know exactly where I should plug it into. Can anyone show me where it goes? Thx.
     
    Rodney Brown, Jul 4, 2019
    #1
  2. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Last edited: Jul 4, 2019
    k-moe, Jul 4, 2019
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  3. Rodney Brown

    Rodney Brown Member

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    Thx buddy!! I'm pretty clear on that part of the assembly ( Been in the headlight housing a few times). To be more clear, I need 2 kno the locations where it plugs-in. I dont see any extra, color-coated wiring , inside the headlight housing.
     
    Last edited: Jul 4, 2019
    Rodney Brown, Jul 4, 2019
    #3
  4. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    The wires from the switch plug into the same colored wires on the right half of the wiring harness bundle in the headlight housing. Both are bullet connectors.

    [​IMG]
     
    k-moe, Jul 4, 2019
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  5. Timbox

    Timbox Well-Known Member

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    k-moe you the man! Outstanding how you pop in and have a pic or schematic ready. You are a great moderator and supporter of this great forum!!
     
    Timbox, Jul 4, 2019
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  6. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    I just do what was done for me by the long-timers.
     
    k-moe, Jul 4, 2019
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  7. Rodney Brown

    Rodney Brown Member

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    To echo Timbox: "K-moe you are the man!! The diagram is awesome!! And you, K-moe ,are most appreciated!! Thx!!
     
    Rodney Brown, Jul 5, 2019
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  8. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Is it safe to assume that the switch is now hooked up and working?
     
    k-moe, Jul 5, 2019
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  9. Rodney Brown

    Rodney Brown Member

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    Rodney Brown, Jul 5, 2019
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  10. Rodney Brown

    Rodney Brown Member

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    No!! It's not safe yet. As I hvnt installed it , but have full confidence of meeting the task alil later in the day. Question? I should find 2 abandoned prongs whn I disassemble light housing, in the area circled on diagram, correct? I wont hv 2 unplug anything, will I?
     
    Rodney Brown, Jul 5, 2019
    #10
  11. KrS14

    KrS14 Active Member

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    I wish my headlight bucket wiring looked like that. lol
     
    KrS14, Jul 5, 2019
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  12. Rodney Brown

    Rodney Brown Member

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    20190705_132915.jpg Really doesnt!! (See pic)
     
    Rodney Brown, Jul 5, 2019
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  13. Rodney Brown

    Rodney Brown Member

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    Still no switch connection. And I cant reconfigure wiring!! They are all not color coordinated. I don't know where to reconnect the blinker. Or the brake switch.
     
    Rodney Brown, Jul 5, 2019
    #13
  14. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Did you unplug the old front brake switch?
     
    k-moe, Jul 5, 2019
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  15. Rodney Brown

    Rodney Brown Member

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    Hey K-moe!! I've taken all of the wiring out of the housing department. I noticed that there is a clutch switch, similar to the front brake switch on the opposite lever. I failed, however, to find the other two wires for the front brake switch. Again, I've disassemble the entire housing, have a clear view of all the wiring, and I do not see anywhere to put the front brake switch. 20190705_132915.jpg
     
    Rodney Brown, Jul 5, 2019
    #15
  16. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    No wonder you're confused. You have no headlight bucket.

    The brown and green wires in the lower foreground are for the front brake switch.
    Everything on the herness is color coded, and only a few of the multi-pin connecting blocks can be misconnected (and you'll know because the colors of the wires don't match).
     
    k-moe, Jul 5, 2019
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  17. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    The brake switch you bought looks like this, correct?
    [​IMG]
     
    k-moe, Jul 5, 2019
    #17
  18. Rodney Brown

    Rodney Brown Member

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    No. OEM model. The same as diagram
     
    Rodney Brown, Jul 5, 2019
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  19. Rodney Brown

    Rodney Brown Member

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    Hey ! The pic I sent was of a completely disassembled unit. Without the housing. I've since reassembled everything) look at the picture) but there's still no place for the front brake switch to be connected. The wires that you pointed out are for the clutch switch. There are no wires for the brake switch.
     

    Attached Files:

    Rodney Brown, Jul 5, 2019
    #19
  20. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    The pic I posted is of the OEM front brake switch.
    The wire colors are green/w yellow trace, and brown.

    The clutch switch is mechanically identical, but the wire colors are Blue/with a white trace, and Black/ with a yellow trace.

    Both sets of wires are visible in both of your photos.
     
    Last edited: Jul 5, 2019
    k-moe, Jul 5, 2019
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  21. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    I've annotated your photo for clarity.
    [​IMG]
     
    k-moe, Jul 5, 2019
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  22. Rodney Brown

    Rodney Brown Member

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    K moe!! I just took that entire harness apart, plug by prong by prong ,& reassembled it. I swear I did not see the connection for the front brake switch. I'm going to disassemble it again tomorrow. I'll let you know what happens. Thanks again. The first bus
     
    Rodney Brown, Jul 5, 2019
    #22
  23. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    Sure looks to me like you DONT have all your wires back into the bucket. There are some that still appear to be missing.

    You had it hooked up---
    IMG_9094.jpg

    Now you don't--
    IMG_9093.jpg

    If you still can't figure it out, I'll open one of my 750r's next week to show you
     
    hogfiddles, Jul 5, 2019
    #23
  24. Rodney Brown

    Rodney Brown Member

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    Gotchu! Thx again..
     
    Rodney Brown, Jul 5, 2019
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  25. Rodney Brown

    Rodney Brown Member

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    Thx bro.Hog!!
     
    Rodney Brown, Jul 5, 2019
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  26. Rodney Brown

    Rodney Brown Member

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    Awesome!! I'm on it again 2morrow.. Thx again
     
    Rodney Brown, Jul 5, 2019
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  27. KrS14

    KrS14 Active Member

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    *not hijacking*

    I redid my whole bucket today in the 40 degree humidity.

    It sucked but i got rid of a lot of the old wiring for the atari that was unneeded.
     
    KrS14, Jul 6, 2019
    #27
  28. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    *except for the hijacking*
     
    k-moe, Jul 6, 2019
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  29. Rodney Brown

    Rodney Brown Member

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    Rodney Brown, Jul 6, 2019
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  30. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    So did you take all the pictures needed to help Rodney, or just hijacking his forum
     
    hogfiddles, Jul 6, 2019
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  31. KrS14

    KrS14 Active Member

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    I see how it is...

    Too bad I didn't try to start a second conversation or change the topic of this thread.

    Then, you'd be right. (looks at moe+hog)
     
    KrS14, Jul 10, 2019
    #31
  32. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    The topic of the thread has nothing to do with removing the ATARI.
    What help did you offer the OP in getting his brake switch hooked up?
    He's clearly someone who needs focused guidance. If that were not the case a slight detour would be acceptable.
     
    k-moe, Jul 10, 2019
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  33. Rodney Brown

    Rodney Brown Member

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    Hey buddy!! I'm back! I unveiled the problem. It appears that I was sent 15627784718742115120805922671390.jpg another clutch cable as opposed to front brake cable. The color codes match identically on the clutch cable. I did however find the old front brake cable still inside of the handlebars. Can I splice the new cable and attached to Old cable to get the proper front brake connection?
     
    Rodney Brown, Jul 10, 2019
    #33
  34. Rodney Brown

    Rodney Brown Member

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    Took a shot.. IT WORKED. SWITCH ACTIVATED!! THX ALOT!!
     
    Rodney Brown, Jul 10, 2019
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  35. KrS14

    KrS14 Active Member

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    I didn't remove the ATARI.. it's been gone for years. I was just saying that I was cleaning up my bucket, just as the OP was.
    You make it sound like you can only comment if you have some sort of insight to give.

    Remember I've been here for 11 years, I've help LOTS, I'm not a noob to this forum.

    If you feel my post was that far out of line, delete it, I don't really care.
     
    KrS14, Jul 10, 2019
    #35
  36. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    That really is preferred when commenting in a thread made by a new member who is seeking help.
    This isn't the Hangout Lounge.
     
    k-moe, Jul 10, 2019
    #36
  37. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    On the underside of the perch there is a small hole. Stick an unbent paperclip into it in order to release the old brake switch. After that you can install the replacement and plug it in. You can cut the one wrong-ended bullet connector off and crinp on a new one of the proper type. A splice is a bit sketchier IMO.
    You should label the miscolored wires so you jog your memory if you ever have to replace that switch again. Seeing mismatched wires always makes me wonder why the wrong colors are hooked together.
     
    Last edited: Jul 10, 2019
    k-moe, Jul 10, 2019
    #37
  38. Rodney Brown

    Rodney Brown Member

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    Gotchu!!
     
    Rodney Brown, Jul 10, 2019
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  39. KrS14

    KrS14 Active Member

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    K then, this forum has gotten a bit... strict, it seems my time will be better spent elsewhere.

    Shame after 11 fricken years Moe... smh.

    Good luck Rodney,

    C-Ya!
     
    KrS14, Jul 10, 2019
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  40. Rodney Brown

    Rodney Brown Member

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    I don't have a clue abt the back-n-forth between you guys but I damn sho appreciate the help frm everybody!!
     
    Rodney Brown, Jul 10, 2019
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  41. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    You're welcome to stay. Sorry that you feel ruffled.
    You must have forgotten all the corrections that Fitz and Rick would dish out over the same sort of thing.
     
    k-moe, Jul 10, 2019
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  42. Rodney Brown

    Rodney Brown Member

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    Dont have a clue.. totally oblivious dude! Just lookin 4 help wit my bike.
     
    Rodney Brown, Jul 10, 2019
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  43. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Sorry. I wasn't responding to you.

    Back to getting your bike fixed :)
     
    k-moe, Jul 10, 2019
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  44. Rodney Brown

    Rodney Brown Member

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    Rodney Brown, Jul 10, 2019
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  45. Rodney Brown

    Rodney Brown Member

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    Kool...
     
    Rodney Brown, Jul 10, 2019
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